please help 50 points!!!! answer 1-5 please if you can show how you got the answer if you cant its ok at least show how you got
2 answers:
Answer:
Explanation:
1)
y = 3x + 6
y = 4x
insert equation 2 into equation 1
3x + 6 = 4x
4x - 3x = 6
x = 6
y = 4x
y = 4(6)
y = 24
solution: (6,24)
2)
y = 2x - 4
y = 3x
3x = 2x - 4
3x -2x = -4
x = -4
y = 3(-4)
y = -12
solution: (-4,-12)
3)
y = 4x+ 3
y = 5x
5x = 4x + 3
5x - 4x = 3
x = 3
y = 5x
y = 5(3)
y = 15
solutions: (3,15)
4)
y = 3x -5
y = 4x
insert equation 2 into 1
3x -5 = 4x
4x - 3x = -5
x = -5
y = 4x
y = 4(-5)
y = -20
solution: (-5,-20)
5)
y = x + 2
y = 2x
insert equation 2 into 1
2x = x + 2
x = 2
y = 2x
y = 2(2)
y = 4
solution: (2,4)
Answer:
Step-by-step explanation:
1. D
2. B
3. C
4. C
5. C
Thanks for letting me know.
;)
<3
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